The man was arrested without incident in downtown Edmonton last Thursday, police said in a news release Tuesday.
Vincent's traveller community family have taken over the street in Hither Green, south east London, and are furious that their shrine has been taken down by outraged neighbours.
She said: "This is the best place for these flowers to be".
She said: "If people leave the flowers alone within a week they'll die, we will come here, clean this road, and go and never come back".
They even demanded an apology from Mr Osborn-Brooks, 78, who is under police protection with his disabled wife, Maureen, 76, amid fears of revenge attacks after he was released without charge.
It is the third time the floral tributes left by friends and relatives of Henry Vincent, who had links to Kent, have been removed.
Scotland Yard said it was liaising with Lewisham Council on an "appropriate management of the floral tributes".
He added: "I am annoyed they put them on my fence".
Assistant coroner Sarah Ormond-Walshe told two of his female relatives during a hearing at Southwark Coroner's Court: "I know you are having a awful time - I am releasing the body now".
Career-criminal Vincent's cousin, who gave her name as Elvina, said of pensioner Mr Osborn-Brooks today: "He's a coward - he won't come out when we're here".
Vincent, she said, "was like a brother to me, he loved his family and his three babies".
Saverimuthu Augustine, 78, said some of the tributes had been attached to his property.
Another neighbour, Theresa Webb, described the tributes as "inappropriate" and of "poor taste".
"If it is a normal person it is different - it could have been my house [that was burgled]".
While supporters of Osborn-Brooks however have labeled the tribute an "insult" the pensioner, other relatives of Vincent have vowed to remove the tributes if they are respected. "There was 101 bouquets down there".
A man wearing a hood filmed himself ripping down the memorial to Henry Vincent in Hither Green around 9.30pm Tuesday, shortly after two women appeared on South Park Crescent to reattach the tributes.
Police are hunting the 28-year-old after his white Vauxhall Astra van was found burnt out and destroyed over the weekend in Orpington, Kent.
Police believe he forced the elderly homeowner into his kitchen armed with a screwdriver, where a struggle ensued and the Vincent suffered a stab wound. It is unclear what implement was used to inflict the fatal blow.